Possible exact duplicates:
Reason for VS.NET ‘current breakpoint will not be hit’ warning?
Why does Visual Studio sometimes not go t
It worked for me. Try this.
First try rebuilding your project by right mouse click the project > Rebuild If that doesn't work, try a clean of the project (right mouse click on the project > clean)
If that didn't work check this:
Right mouse click your project
select [Properties]
select the [Build] tab
make sure [Define DEBUG constant] and [Define TRACE constant] are checked
Click the [Advanced] button at the bottom of the Build tabpage
Make sure that [Debug Info:] is set to [full]
Click [OK] and rebuild the project ;-)
Hope that works for you! (step 6 generates the .pdb files, these are the debugging symbols)